<form class="example-form">
   <span>评论用户名:</span>
    <app-edit-pointer
    [(value)]="comment.user" 
    [className]="'_User'"
    [searchCol]="'nickname'"
    >
   </app-edit-pointer>

    <span>评论歌单名:</span>
    <app-edit-pointer 
    [(value)]="comment.album" 
    [className]="'MusicAlbum'"
    [searchCol]="'title'"
    >
   </app-edit-pointer>
    <mat-form-field class="example-full-width">
        <mat-label>评论内容</mat-label>
        <input [(ngModel)]="comment.content" matInput placeholder="" [ngModelOptions]="{standalone: true}">
      </mat-form-field>

     <div class="btn">
        <button (click)="save()" mat-raised-button color="primary" class="example-full-width">保存</button>
        <button (click)="back()" mat-raised-button class="example-full-width">返回</button>
     </div>
  </form>
